Withanolides and related ergostane-type steroids as antifeedants for larvae ofEpilachna varivestis (Coleoptera: Chrysomelidae)

Abstract

Eight steroids isolated from solanaceous plants (Physalis, Withania andNicandra species) were investigated as to their antifeedant efficacy for L4 larvae ofEpilachna varivestis Muls. (Coleoptera). Nicalbin A (VII) was a potent antifeedant, but at high concentrations it was also toxic to this insect. Other active compounds were withanolide E (I), 4… (More)
DOI: 10.1007/BF03158579

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